Forum ‹ BigDB ‹ What is the max String size in BigDB?

[unboundedgames]

Hey, I have been tinkering with adding a replay system to my game so people can study positions, do branching, share things, etc. but so far I just have the 'offline' implementation that is totally clientside, and the replay is saved as a giant String of raw data which the client can parse through into a series of moves. I think the obvious final version of this would involve some serverside aspects that have a more multiplayer-centric behavior, such as displaying latest high rank games on title screen, or having some replays attached to people's account.

To do this, it would simplify things to just save that string into BigDB, but there are edge cases where a game could go on for 100+ turns, making the raw data string 1000+ characters long, and I can't find anywhere if there is some maximum string size in BigDB? I think I remember each object having 500kb allocated to it, which would be plenty, but wondering if stacking a chunk of that into a single string would be ok??

[Henrik]

There's no restriction on individual values in a BigDB object, there's only the max object size restriction, which means you can have a single 500kb string.

[unboundedgames]

Using 500kb, my approximation based on replay data format is the match would need to last somewhere in the range of 100000~200000 turns to exceed this limit. Most games are about 50 turns on average, and take about 15 minutes, so I think a replay that manages to break this would also be a 500+ hour game .

Seems like this can handle a pretty big replay by that measure, which is great to know, thanks!